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GM CEO Mary Barra joins the Emmys’ #SmartGirlsAsk Twitter movement

GM CEO Mary BarraGM CEO Mary Barra
GM CEO Mary BarraPhotograph by Ben Baker for Fortune

General Motors CEO Mary Barra, Fortune‘s Most Powerful Woman of 2015, is blossoming into a social media maven.

First, Barra joined the #ILookLikeAnEngineer tweetstorm. Then, with some encouragement from Facebook COO Sheryl Sandberg, Barra got on Facebook. Now, she’s become one of the few CEOs to join the #SmartGirlsAsk movement.

The hashtag is the brainchild actor and comedian Amy Poehler, who, just in time for Sunday’s Primetime Emmy Awards, teamed up with the Television Academy to launch a social campaign designed to call attention to vapid questions usually asked of female celebs on the red carpet. Actors, directors, showrunners and fans quickly got on board, tweeting a stream of smart, provocative questions for Emmy attendees. Plenty of big names—including Shondaland honcho Shonda Rhimes, journalist Katie Couric and, yes, Hillary Clinton—have also contributed queries.

Barra’s #SmartGirlsAsk question—”If you could build or invent anything, what would it be?”—seems appropriate from the head of a Fortune 500 automaker, STEM proponent and engineer. But will it be one of the queries that makes it to the red carpet? We’ll have watch and see.

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